. >>> national security agency spying practices is not letting up tonight. the u.s. ambassador to spain was summoned to the foreign ministry in madrid, to answer new eavesdropping allegations. danielle nottingham has more from washington. >> reporter: a delegation of european diplomats arrived on capitol hill, hoping to limit u.s. spying on their leaders. >> i think we have to make a clear distinction between fighting together terrorism, but not spying on friends. >> reporter: former national security agency contractor edward snowden leaked documents revealing the u.s. tapped german chancellor awningle -- angella merkel's cell phone. president obama steered clear of the controversy, as he helped swear in his new fbi director. but the white house is saying, u.s. intelligence gather suggest under review. >> the president clearly feels strongly about making sure that we are not just collecting information because we can, but because we should. >> reporter: besides being embarrassing, spying on allies could have economic consequences, as washington works to negotiate a m